I have gone through the new Maps program with areas I travel. I found no issues that render it useless, and some aspects are better than the Google version. I am willing to cut Apple some slack because I have seen all map programs with some wild failures. It may even have been Google who was reported to show a road going through that actually stopped at the top of a cliff. Most are due to things that change between the time it is used and the original survey. Most times, it is having the GPS show you in the middle of a field because the road was rebuilt in a different location within the last couple years. Problems get fixed because the users report them, and once spotted, solutions can be found. Do not forget that you have probably hundreds of technicians pouring over the maps. When you are doing a job like that, it is not uncommon to miss the same thing over and over again. And peope have bad days or whatever. Years ago, I plotted a trip using the Maps program on my MacBook. I decided to try a state highway in New Mexico that I had never been on before. Imagine my thrill of travelling down a dirt road in the middle of the night, miles from nowhere, and warning signs saying beware of cattle in the roadway.
This is why I feel that Streetview and other programs are gimmicks. I go to areas where construction is common. Too often, using Streetview or satellite images may show roads or buildings that no longer exist. An example is a road near my house which is popular for oversize loads. Satellite images and if available, Streetview would show a good road for taking trailers or equipment, but would not tell you that the road has been shutdown for over a year for bridge repairs. The alternate routes are miles away and would not be easy to reach. for some people, Streetview is a handy tool. I do not see Apple duplicating it because it requires a large investment and would only duplicate the Google program. Until the data is updated at least weekly, it cannot be considered reliable for many.